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154440600140 = 2257722030007
BaseRepresentation
bin1000111111010101100…
…0001000101001001100
3112202122020020101002102
42033311120020221030
510012243243201030
6154540554014232
714105116304231
oct2176530105114
9482566211072
10154440600140
115a552768822
1225b21a17378
13117435591c8
147691437788
15403d887c45
hex23f5608a4c

154440600140 has 12 divisors (see below), whose sum is σ = 324325260336. Its totient is φ = 61776240048.

The previous prime is 154440600131. The next prime is 154440600151. The reversal of 154440600140 is 41006044451.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3861014984 + ... + 3861015023.

It is an arithmetic number, because the mean of its divisors is an integer number (27027105028).

Almost surely, 2154440600140 is an apocalyptic number.

154440600140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154440600140 is an abundant number, since it is smaller than the sum of its proper divisors (169884660196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154440600140 is a wasteful number, since it uses less digits than its factorization.

154440600140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7722030016 (or 7722030014 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 154440600140 its reverse (41006044451), we get a palindrome (195446644591).

The spelling of 154440600140 in words is "one hundred fifty-four billion, four hundred forty million, six hundred thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 7722030007 15444060014 30888120028 38610150035 77220300070 154440600140